Take the soap and oatmeal and place in a blender. Blend and then pulse till the mixture becomes a fine powder like consistency. Put this mixture in a large deep bowl. Add the oil, essential oils and water. Using your hands, form a ball out of this mixture. Using your index finger, make a 1/8-inch depression. Place the cord with the knot in the depression. Bring the 2 sides of the depression together and "bury" the cord into the ball. Let the soap dry for at least 48 hours.
For her - replace the essential oils with Lavender and Jasmine essential oils
For a girl - replace the essential oils with Strawberry or lemon pie fragrance oil
For a boy - replace the essential oils with Monkey farts fragrance oil